Improvement in harrows



J. C. WILLIAMS.

Harrow 168,31], Patented Sept. 28,1875.

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NITED STATES PATENT OFFICE,

JOHN C. WILLIAMS, OF OLIN, IOWA.

IMPROVEMENT IN HARROWS.

Specification forming part of Letters Patent No. 168,31 1, datedSeptember 28, 1875; application riled August 30, 1875.

10 all whom it may concern Be it known ihat I, JOHN (J. WILLIAMS, ofOlin, in the county of Jones and State of Iowa, have invented certainnew and useful Improvements in Harrow-Teeth Fasteners; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to which itpertains to make and use the same, reference being had to theaccompanying drawing, and to the letters of reference marked thereon,which form a part of this specification.

My invention relates to improvements in fastenings for harrow-teeth; andconsists in a head-piece for the tooth, a protecting and holding plate,and retaining-bolts, as hereinafter fully set forth.

In the drawings, Figure 1 is a view of a poriion of a harrowframe with atooth secured by my fastener, and Fig. 2 is a vertical section of thefastener and frame.

A A is the harrow-frame. B is a harrowtooth made in usual form, slightlytapering toward the point. C is the head-block for holding the tooth B.It is perforated with the mortise O made slightly tapering to receiveand hold the upper end of the tooth B, the latter being so constructedthat when inserted in the mortise its upper end will be flush with theupper side of the head-block. It is also provided with the holes C forthe passage through of the retaining-bolts. D is a plate placed betweenthe head-block O and the frame A. It prevents injury to the frame by theworking upward of the tooth B, and it holds the latter firmly in themortise C. It is provided with suitable holes for the retainingbolts. Eare the retaifiing-bolts by which the head-block O, and plate D are heldtogether, and to the frame A, as shown.

It will be readily seen that teeth attached to the frame by my fastenermay be readily removed when desired, and may be again as readilyattached, and that the tooth will be held rigidly in position, and theframe perfectly protected from injury.

Having described myinventiomwhatlclaim, and desire to secure by LettersPatent, is-

The improved harrow-tooth fastener, composed of the head-block 0, havingthe mortise O, plate D, and retaining-bolts E, all constructed andarranged substantially as shown and for the purpose described.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

JOHN G. WILLIAMS.

Witnesses:

W. A. SEELEY, T. J. Townsnivo.

